Cell Organelles Flashcards
1
Q
cell membrane
A
- separates cell from outside
- controls what enters and leaves cells
- recognizes signals
- thin outside
2
Q
cell wall
A
- made of cellulose
- 3 layers
- thick outside
- gives cell shape and structure
3
Q
nucleus
A
- has a double layer nuclear membrane
- controls center of cell
- protects DNA
4
Q
nucleolus
A
- produces ribosomes
- organizer of chromosomes
5
Q
centrioles
A
- help with cell division
- one pair in each cell
- “motor” proteins
6
Q
ribosomes
A
- makes proteins (protein synthesis)
- 2 subunits
- attached to ER (dots on rough ER)
7
Q
golgi apparatus
A
- sorts, labels, packages and ships proteins
- membrane sacs
8
Q
endoplasmic reticulum
A
- part of protein factory
- helps complete proteins
- smooth and rough
9
Q
mitochondria
A
-makes ATP
-cellular respiration
-power house of the cell
(kidney bean shaped w squiggle inside)
10
Q
chloroplast
A
-2 membranes
-amyloplasts=stores starch
-chromoplasts=pigments for fruits and flowers
-stores chlorophyll (photosynthesis)
(kidney bean shape w stacks)
11
Q
lysosome
A
-digests food
-cleans up and recycles
-digests broken organelles
-membrane sac
(circle)
12
Q
peroxisome
A
-absorbs nutrients
-digests fatty acids
-membrane sac
(circle)
13
Q
vacuole
A
-moves material around cell
-storage for water
-membrane sac
(big space)
14
Q
cytoskeleton
A
- internal structure
- helps move organelles
- made of 3 protein fibers
15
Q
SER
A
-produces lipids
16
Q
RER
A
-has ribosomes
17
Q
cytoplasm
A
-all contents of the cell
